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  #13  
Old 06-07-2012, 10:26 PM
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Re: 275/55 20 All Terrain Tire Thread

A different size spare will not hurt and have no wear issues in the short term (i.e. not driving like this for 5,000 miles). The wheels on every vehicle rotate at different speeds all the time when you turn, so a spare that is off by a few percent is negligible when you are driving straight. The difference will marginally affect handling/braking but the size difference is nothing to be concerned about unless we start talking about mini donut spares.
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  #14  
Old 06-10-2012, 02:31 PM
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Re: 275/55 20 All Terrain Tire Thread

I just ordered the Goodyear Wrangler Silent Armor AT tires, 275/55/20. I have a 4x4 Overland, and every measurement I take says these should fit just fine. Although I think a bit more offset in the rim would definitely help.
And just checking here first, before I actually put the tires on the truck, we have verified that the dealer has this size to recalibrate the speedo? No weird things to know about?
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Old 06-10-2012, 04:06 PM
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Re: 275/55 20 All Terrain Tire Thread

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Originally Posted by Smooth1 View Post
I just ordered the Goodyear Wrangler Silent Armor AT tires, 275/55/20. I have a 4x4 Overland, and every measurement I take says these should fit just fine. Although I think a bit more offset in the rim would definitely help.
And just checking here first, before I actually put the tires on the truck, we have verified that the dealer has this size to recalibrate the speedo? No weird things to know about?
Definitely post photos and driving impressions once you get them on.
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Old 06-10-2012, 10:45 PM
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Re: 275/55 20 All Terrain Tire Thread

^^^ x 2
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  #17  
Old 06-11-2012, 12:35 PM
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Re: 275/55 20 All Terrain Tire Thread

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Originally Posted by rubicontrail.net View Post
Definitely post photos and driving impressions once you get them on.
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Old 06-13-2012, 11:38 AM
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Re: 275/55 20 All Terrain Tire Thread

Any impressions? Can't wait to hear...
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Old 06-13-2012, 01:29 PM
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Re: 275/55 20 All Terrain Tire Thread

Quote:
Originally Posted by Smooth1 View Post
I just ordered the Goodyear Wrangler Silent Armor AT tires, 275/55/20. I have a 4x4 Overland, and every measurement I take says these should fit just fine. Although I think a bit more offset in the rim would definitely help.
And just checking here first, before I actually put the tires on the truck, we have verified that the dealer has this size to recalibrate the speedo? No weird things to know about?
My dealer tells me they can only recalibrate the speedo for the various factory sizes. They cannot adjust it for taller oversize tires. With my combination (31.5" tire) my speedo reads 1-2mph slow.
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  #20  
Old 06-13-2012, 02:20 PM
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There's no need to calibrate between factory sizes. They all have the same overall diameter. The increase in wheel size is offset by the tire size.


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  #21  
Old 06-13-2012, 02:40 PM
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Re: 275/55 20 All Terrain Tire Thread

I went down to the tire store yesterday to have the all terrains put on. And the problems started right away. One of the tires wouldn't balance right. I guess a defect in the tire from the mfgr. was keeping the machine from being able to balance it properly. We did test fit one of them and while it did fit, wow was it close. I think too close. So, because the one tire was bad, we couldn't put them on the truck anyway, so I told them forget it. And I have ordered the Continental Crosscontact LX 20's for now. I'm going to get a set of 18 inch rims with a better offset to allow more room for a wider, taller tire and then just use them for when I go into the mountians. It's just a better decision I think.
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Old 06-13-2012, 04:03 PM
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Re: 275/55 20 All Terrain Tire Thread

Which one did you try, a front. There's shots of another persons rig with 275/55/20s on stock wheels and it was close. I'm going to try them on 20X8.5" wheels with 25mm offset.
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Old 06-21-2012, 10:35 AM
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Re: 275/55 20 All Terrain Tire Thread

I just had the P275/55/20 Goodyear Silent Armor put on 20 x 8.5 Boss 335B wheels with + 25 offset installed on my wife's Overland. They look great. There is just a light scrub on the wheel well felt going lock to lock but we're not drifting this Jeep so the wheels won't be in this position often. This offset puts the tires out 1.4" or just under the fenderwell edge. It also looks alot better with the Mopar rock rails I put on as the stock offset has the wheels tucked in to far and the rails stick out. I'll post some pictures later. From my short time behind the wheel these tires are well balanced and no noisier than stock. I'm used to driving my lifted JK on 37s with a rag top so my opinion there might be differant than others but it sure is smooth.
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Old 06-21-2012, 05:14 PM
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Re: 275/55 20 All Terrain Tire Thread

Bought an extra, duplicate set of stock 20" wheels, extra set of TPMS sensors and just had Cooper Zeon LTZ 275/55/20 mounted this week at $995 out the door (KO Tire in Elk Grove Village, IL -- small but very top shelf people). No rubbing, no noticeable affect on power or braking and only a very small amount of low-frequency hum that is silenced by highway wind noise.

The Zeon LTZs in 275/55/20 absolutely do not rub anywhere (stock non-QL suspension w/rear leveling shocks). The handling is surprisingly better than the 20" Forteras and the extra sidewall height of the Coopers really helps the ride. The overall diameter increase was a hair under 1.5" which means I got another .75" of ground clearance. I've got a long trip this weekend and will do a formal initial review w/pics after that.

on the initial week with my new Cooper Zeon LTZs though!

First long road trip review is here: Cooper Zeon LTZ 275/55/20 Review
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